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Previous GHG Emissions Inventories Pleasanton Climate Action Plan Update 11 Water and Wastewater The original EBEW inventories included activity data and emissions from the water and wastewater sectors, which are standard to include in accordance with the ICLEI U.S. Community Protocol. Emissions were calculated using the following ICLEI Community Protocol methods (determined based on facility information gathered by EBEW): WW.2, WW.8, and WW.12. A typological error referencing the wastewater activity data was uncovered during Rincon’s review and was corrected. In addition, during a review of the EBEW inventory and Dublin San Ramone Services District (DSRSD) operations, it was determined that wastewater from the DSRSD discharges to the bay via a main pipeline. The original EBEW inventory was set as discharging into rivers and streams, which underreported electricity consumption used to pump wastewater over the pass and into the bay. Therefore, Rincon updated the calculation to reflect this additional pumping. Once these errors were resolved, emissions for water and wastewater were calculated properly with no other further issues. For more detail on water and wastewater sector calculations, see Section 3.3. BART The EBEW inventories originally included emissions from Bay Area Rapid Transit (BART). It was decided by City staff and Rincon to ultimately remove these emissions from the four EBEW inventory years (2005, 2010, 2015, and 2017), similar to the City of Dublin that recently made the decision to remove BART emissions from its CAP. This was due to a lack of emissions data available for years after 2013, which prevented emissions from being accurately calculated and forecasted. All four inventory years used the same emissions factor, calculated based off of 2013 data and leading to inaccurate estimation of emissions. Pleasanton ultimately does not have control over reducing these emissions, and BART already has its own GHG emissions reduction goals in place over the next decade. These emissions also represented a small percentage of Pleasanton’s overall emissions (0.45 percent in 2017). For these reasons, these emissions were ultimately removed. Summary of Previous Year Inventories Data Table 4 and Table 5 include all of the activity data, emission factors, and total GHG emissions available for both the original previous year inventories (Table 4) and the updated previous year inventories (Table 5).